Donald Trump is "Rome burning in man form," according to comedian John Oliver who, once again, turned his comedic wit to focus on the GOP candidate in Sunday's episode of "Last Week Tonight."

Last week, Donald Trump met with Speaker of the House Paul Ryan to mend fences. Afterward, Ryan said he was "very encouraged" by the meeting and went on to assert that the billionaire was a "warm and genuine person."

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"I understand the genuine part in the same way that Miller Genuine Draft is genuine," Oliver quipped. "You know, it is the sh---y thing that it is.

"But the only way that Trump could be described as warm is if you're feeling leftover tanning bed heat radiating from his skin," the Brit wisecracked.

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"And why is Paul Ryan being so coy about this? We all know where this is going." Trump needs the GOP's money since he's not funding his general election campaign, and the GOP needs Trump's voters, Oliver explained.

Thus, the HBO host argued, Trump and the GOP are "like a teenage Christian couple who've made an abstinence pledge. They're going to have sex, it's just a matter of time. But they still need to make a big show of resisting it for anyone who might be paying attention."

The week wasn't all warm and fuzzy for The Donald, though.

On Friday, he tried to justify not releasing his tax returns — and totally got owned by George Stephanopoulos on "Good Morning America" in a clip that Oliver gleefully aired for his own audience.

John Oliver took to tackling Trump’s latest antics — including posing as his own publicist “John Miller” — in Sunday’s episode of “Last Week Tonight.” (Last Week Tonight/Youtube/HBO)

The comedian finished out the Trump trashing segment by turning his attention to the current candidate's creepy 1990s turn as his own faux publicist, John Miller.

"That is so perfectly Donald Trump," Oliver enthused after playing a clip of so-called John Miller at work. "Even his own imaginary alter ego reflexively brags about himself."

On other sections of the tape, Trump's publicist persona claims that musical legend Madonna wanted to date the brash billionaire.

"Now, much like his candidacy, that claim is sad but not implausible," Oliver cautioned.

"Remember, there were rumors in the '90s that Madonna got together with Vanilla Ice, Jose Canseco and Willem Dafoe — and what is Donald Trump if not the authenticity of Vanilla Ice, the likability of Jose Canseco, and the terrifying facial expressions of Willem Dafoe?"

This shouldn't really be an issue now, though — all the way back in 1991, Trump confessed to being Miller. Now, he's publicly denied it.

"Look, there is only one way to settle this," Oliver said with a smile. "Tonight, I'd like to extend an invitation to 'John Miller, publicist' to appear on this program.

John Oliver said the only way Donald Trump could be described as warm is “if you’re feeling leftover tanning bed heat radiating from his skin.” (Charles Krupa/AP)

"Now, to be clear, this is not an invitation to Donald Trump — who has never and will never be invited here for an interview — but if John Miller wants to sit down with us, we would love to have him."

In March — just a week after comparing The Donald's dong to "a Cheeto with the cheese dust rubbed off" — he tore apart Trump's wall plans, the efficacy of which he likened to "wearing a condom to protect against head lice."

The month before, he offered a wildly popular episode eviscerating everything about the reality star's candidacy.

"Donald Trump is America's back mole," he said at the time.

"It may have seemed harmless a year ago but now that it has gotten frighteningly bigger it is no longer wise to ignore it."